Book excerpt: Aircraft Systems For Professional Pilots from Peter Vosbury and William Kohlruss of Embry Riddle Aeronautical University covers all airframe and engine-related systems that are required for an aircraft to be operated effectively, efficiently, and safely by the flight crew. This book is intended for individuals who are learning to fly with their goal being a career as a pilot in corporate, commercial, or military aviation or for the already professional pilot who wants a review of how systems work.A commercial airline pilot instinctively knows that their airplane has a hydraulic system, but they may have forgotten the details of what type of pump is used and how the pump works. This book will provide all those details.The systems discussed cover everything from small airplanes like a Cessna 172, to large commercial airliners like a Boeing 787.